Scientist l

Sublime Systems

120

Somerville, MA, United States

Posted on: 2025-06-05

Category: materials

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Expired

Employment type:

Full time

Experience required:

Intermediate

Salary

Salary not provided

About the company:

Sublime Systems is leading a swift and massive transition to a clean cement manufacturing future.

Sublime’s breakthrough electrochemical process avoids the pollution caused by ordinary portland cement’s use of fossil-fueled kilns and limestone feedstock. Sublime instead extracts reactive calcium and silicates from abundant raw materials at ambient temperature, to make ASTM C1157-compliant Sublime Cement™, a 1:1 replacement for OPC in concrete. Because it does not require carbon capture, Sublime’s technology offers a clear path for cost-competitive clean cement manufacturing at scale.

Sublime was founded at MIT in 2020 by Dr. Leah Ellis and Prof. Yet-Ming Chiang, both respected experts in materials science, electrochemical systems, and sustainability research. The company has raised over $200M in funding from leading tech investors, global cement majors, and cooperative agreements with the U.S. Department of Energy’s ARPA-E, IEDO, and OCED award programs.

It currently operates a Somerville, MA-based pilot plant with a >250 TPY nameplate production capacity and is developing its 30,000 TPY first commercial facility in Holyoke, MA.

Sublime is advancing a breakthrough, clean, efficient, low-waste process for manufacturing cement, the essential ingredient in the most-consumed human-made material on Earth: concrete. Replacing 200-year-old manufacturing methods that are reliant on kilns running hotter than lava, our near-ambient-temperature, electrochemical technology manufactures industry-accepted cement and critical minerals. We’re partnering with leading general contractors, concrete producers, developers, and technology hyperscalers to deploy our clean, durable, beautiful Sublime Cement® in infrastructure that is defining the future of clean construction. Backed by some of the world’s largest cement producers, leading private investors, and the U.S. Department of Energy, we are assembling a talented, collaborative team that is "amped about cement" (pun intended) and committed to operating on the frontiers of material science, manufacturing, industry, construction, and commercial partnerships, to advance cement innovation that will endure for the next millennium.

Sublime is seeking a Scientist I to contribute to the development of our decarbonized cement. This Scientist will be responsible for conducting research to improve the performance of Sublime Cement through literature reviews, designing experiments, performing hand-on characterization and testing in lab, analyzing and interpreting data, and communicating results. The Scientist I will also contribute their expertise to help set technical priorities and research strategy, plan and prioritize experiments, and contribute to the successful operation of our shared laboratory.

This is an individual contributor role that will report to Sublime’s Managing Scientist or Scientist II of Product R&D. This position is in person at Sublime’s headquarters in Somerville, MA, with occasional flexibility to work from home as appropriate based on team and project needs.

Sublime Systems is proud to be an Equal Opportunity Employer

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected veteran status, or any other characteristic protected by law.

Your Right to Work

In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.

Notice of E-Verify

Sublime Systems use E-Verify to confirm the identity and employment eligibility of all new hires.

Responsibilities for this role will include:

Developing and implementing new experimental methods and tools to validate and optimize the performance of Sublime’s cement

Performing lab experiments including cement property measurements, analyzing data, and presenting results

Devising and implementing strategies to improve cement performance

Prioritizing and organizing the team’s research activities

Championing safety, especially in the development of experimental processes

Contributing to the development of Sublime’s technology through literature reviews and informational interviews with industry experts

Writing white papers, reports, and patent applications

Championing safety, especially in the development of experimental processes.

Fostering a supportive, inclusive, innovative, and dynamic company culture.

B.S or M.S in materials science/engineering, chemical engineering, solid-state chemistry, civil engineering, or a related field.

2+ years of practical industry experience in research and development, benchtop scale-up, quality assurance, materials engineering, or failure analysis.

Ability to select, design, and/or apply tools and techniques to measure cement’s key physical and chemical properties.

Ability to use physical and chemical characterization techniques for cement materials such as laser diffraction, TGA, XRF, XRD, optical microscopy, and/or SEM

Experience applying ASTM standard testing methods

Knowledge of statistical methods including design of experiments is preferred.

Strong presentation and communication skills, both written and verbal.

Excellent interpersonal skills required to develop and maintain effective working relationships with all team members.

Organizational acumen to organize and prioritize research efforts.

Ability to pay close attention to detail, focusing on accuracy and quality, without losing sight of the bigger picture.

Balance, perspective, and a good sense of humor.

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